<html>
<head>
    <meta charset='utf-8' >
</head>
<body>
    {{err}}
    <form action='' method='post'>
        用户名<input type='text' name='name'> <br>
        密&nbsp;码<input type='password' name='pwd'>
        <input type='submit' value='登陆'>
    </form>
</body>
</html>